Generate names for anonymous Java classes using enclosing classes and members.

pkg/analyzer/test/generated/element_test.dart

Index: pkg/analyzer/test/generated/element_test.dart
diff --git a/pkg/analyzer/test/generated/element_test.dart b/pkg/analyzer/test/generated/element_test.dart
index 7d9e4f8620f67cdb9268ebe00f865cd12b853422..218db4d0455fa086027b1e44ae2dd9b72d878012 100644
--- a/pkg/analyzer/test/generated/element_test.dart
+++ b/pkg/analyzer/test/generated/element_test.dart
@@ -2989,7 +2989,7 @@ class FunctionTypeImplTest extends EngineTestCase {
 
   void test_isSubtypeOf_baseCase_classFunction() {
     ClassElementImpl functionElement = ElementFactory.classElement2("Function", []);
-    InterfaceTypeImpl functionType = new InterfaceTypeImpl_34(functionElement);
+    InterfaceTypeImpl functionType = new InterfaceTypeImpl_FunctionTypeImplTest_test_isSubtypeOf_baseCase_classFunction(functionElement);
     FunctionType f = ElementFactory.functionElement("f").type;
     JUnitTestCase.assertTrue(f.isSubtypeOf(functionType));
   }
@@ -3488,8 +3488,8 @@ class FunctionTypeImplTest extends EngineTestCase {
   }
 }
 
-class InterfaceTypeImpl_34 extends InterfaceTypeImpl {
-  InterfaceTypeImpl_34(ClassElement arg0) : super.con1(arg0);
+class InterfaceTypeImpl_FunctionTypeImplTest_test_isSubtypeOf_baseCase_classFunction extends InterfaceTypeImpl {
+  InterfaceTypeImpl_FunctionTypeImplTest_test_isSubtypeOf_baseCase_classFunction(ClassElement arg0) : super.con1(arg0);
 
   bool get isDartCoreFunction => true;
 }